#include<iostream>
#include<string>
using namespace std;
int main()
{
	string s1("hello");
	s1 += " world";
	cout << s1 << endl;
	string s2(100, '*');
	cout << s2 << endl;
	string s3(s1, 5,3);
	cout << s3 << endl;
	cout << (s1 < s3) << endl;
	return 0;
}